Fountain pen



5. SUMMER FOUNTAIN PEN Jan. 6, 1931.

Filed Aug. 9. 1929 2 Sheets-Sheet 1 iNVENTQR ,1 .126! fizz/172262 LESZIZ Q 5. SUMMER FCUNTAIN PEN Filed Aug. 9', 1929 Jane 6, 11931 2Sheets-Sheet 2 lNV ENTQ R Jk zrzam! fizmmw Patented Jan. 6, 19351 1 siemnnn snnlvrnng or LBANY, n w ORK; lissrenonfor. one-HALF pro nimnx s.

SUMMER, or NEWYORK, NJY. v I

.- j o NTArn PEN,

In neatio filed Au ust 9,1929. "Serial No. 384, 660.

My present invention relates to a fountain pen and more particularly. toa fountain pen of that type commonly known as a self-filling pen.- 1Inthis type of pen, as generallyconstructed, the barrelcontains a rubbersack or receptacle which in fillin the pen is evacuated by beingcompressed by wise,in.,order that when the end of the pen is dipped intoan ink or writing fluid andthe lever released the sack-is-fill'ed bytheaction of atmospheric pressure. r

It is more or. less common experiencein the use of fountain pensto findthe pen point, and oftentimesthe feed (tube, cloggedbecause ofthe ink orwriting fiuidhavinglbecome dried therein after a period ofnon-use.Furthermore, much inconvenience, and some.- times difiiculty, isexperiencedin causing the ink to flow properly. The usuai method ofinducing the ink to flow is by shaking or knocking the pen againstsome'other object. Now the purpose of my present invention is toovercome this difliculty and in a fountain pen preferably of theself-filling type to providea means forflushing or priming the feed tubeand pen point whereby the ink or other writing fluid will flow.sufficiently freely for writing-purposes wheneverit is desired to usethc'pen. Of course, the flushing of the feed tube and penpoint might beaccomplished by actuating the filling lever, but when thus flushing thepen'point the ink is likely to be ejected too freely fromthe penandipossibly with sufficient force to not only squirt the ink andconsequently waste the same, but in addition to soil the objects. withwhich the ink thus wasted comes into Contact- It is the purpose of myinvention to so incorporate the flushing and priming-devices that in theordinary useoof. the pen they are operated automatically, that is,unconsciously by the point may be effected by placing the cap on thereverse end of the pen barrel,or by removing the capfrom 1ts normalnon-use position on thepen barrel, or removing'the pen from its socketintheica'se of a' 'desk typeof alever, or otl1er-- fountain pen. IThisaction is accomplished by the employment of a suitablev device tocompress the .ink sack or container only sulhciently .toc'ause enoughink to flow into the feed tube and to the pen point to supply thenecessary initial amount of ink for writing purposes. This apparatus hasa further advantage that when either removingthe cap from the reverseendof the barrel,-.or when placing: the .cap over the pen point on, the

barrel, thereis a tendency to permit the ink sack or reservoirto expandslightly thereby causing the ink to flowfrom the pen point and. feedtube into the sack to tl1ustend-,.at

' f The fountain penmade in accordance with my invent-ion 'will behereinafter more part1cula-rlydescr1bed 1n COIlJIllIClZlOIi with theaccompanying drawings in which Figure 1 is aplanof'a fountain pen inwhich the I invention isincorporated,

F ig.-2 is an'enlarged section on line 2-2, Fig.1, is anenlarged partiallongitudinal section illustratingqthe form of theinven 'tion asshown inFigs. 1 and 2,

- trated in'Fig;5.

' Referring toithe drawings andmore particularly to Figs. 1 to 4inclusive. it will be seen that carrying'out; the invention" thepeirmade in accordance'therewith is conin which there isffitted a penpoint 17. The

structed to include the usual barrel. 15 having La feed tube section 16at one end'th'ereof and pen made to include theusual cap or cover member18. Also, asis customary, the end of the barrel adjacent the feed tubesection 16 4 may be screw threaded, as indicated at 19, in order tobeengagedyby theinternalscrew threads 2O provided for this purpose withinl the cap 18;

Of course, as in some instances, these screw threads may be omltted andthe cap held frlctionally 111 positlon to coverthe pen point 111 j thesaniemanner' that: when the penis in luse the cap isplac'ed-over andmaintalned -fr1ctionally on the reverse end' of the barrel.

In; thistyper o f' pen the barrel l5is .iitted v 't'v'ith'a Sack b r I'ESelVOllQ l inade ldf suitable material such, forexample, as'riibb'erand" adapted to contain ink or other writing fluid.

One end of the sack 21 is suitably connected to the feed'tube sectionlama th'eseiparts secured in'the barrel in the'usual or any desiredmanner; In a suitable position in the barrel '15 the same is fittedwitha leverl22 adapted Y to be operated to'compressthe adjacent por tionof the sack, thereby evacuatlng-the same so thatafterthe pen pointand'the end of the f edtube havebeen placedfibeneatlr the sur- 1 face'ofa quantity of writing fluid and the lever released the ink will bedrawnlinto the sackor reservoir to substantially fill the sameconstructionsand the invention in the present Ill case relates moreparticularly to abutto'n or plunger associated with the barrel andadapted whenpressed inwardly to depressthe sack or reservoir, or aportion thereof, sufliciently to cause enough ink or "other writingfluid to flow to the feedtube section and the pen point 7 to prime thesame.

To this end,as illustrated in these figures of the drawing, 1 may employa plate 2% of suf- J'icient dimensionsto 'accomplishthe purpose andprovide the same with a flan-ge25 which extends through ,a slot 26provided therefor I in the'pen barrell5, A plate PAC-normally lies"theouter surface of the=plate against the between a portion ofthesack2l and the inner face of the peubarrel, the resiliency-of-the sackbeing sufficient to normally maintain inner face of the pen barrelwiththe flange 25 protruding through and extending beyond the slot 26. Theseparts, namely theplate 24 and the flange 25, therefore, comprise adepressible button which, as illustrated in these figures of thedrawingryislocated adjacent the end of the barrel opposite the feed tubeand the pen point end; It will now be readily understood tha-twhen' thecap 18 is removed 7 from this type of penfto uncover the pen point andis placed over the opposite end of the barrel,as shown in'Figs. 3 and4,.itwill depress the flange 2 5 of the button, causing the plate 24thereof to move inwardly and compress-the adjacent end of the ink sack21. V The parts are so designed, as will furthermore be understood, thatby thus compressing the inksack sufi'icient ink is caused to flow to thefeed tube and pen point to adequately prime the same, -It willalso beiunderstojod that in removing-the cap from this end o'f'the' barrel theresiliency of the sack, together with the contents thereof, is normallysufiicient to ref tfuin thelblitttiil toit's initial *pios'ition inwhich th'e'plate'lies against the inner face of the barrel-and theflange extends beyond the same, as

clearly illustrated in Fig 2, thereby causing 5a: slighti'ezz'pansionof'vth'e sack and a resultant flow of ink from the feedtube and pen point into'the sack, this action obviously tending wkeepthe pen point 'and thelpassa-ge or'passagesth'rough the feed tube-clean.v

' In the form oftlie invention as illustrated in Figs; and-6fit will be"s'een'that I may employ a plate 27 connected exteriorlyforotherwiseto'the barrel and in -any suitable position by means of Irivets 28 "or other means; This plate-has connected thereto a spring arm29 -which extends *through an opening 30 provided therefor inthe wall ofthe barrel 15 of the pen. Lying :within' the barrelan' d' between thesame and the adjacent portionof'theink-sack' 2'l'there is a lever whichis connected to the end of the spring arm in any suitable manner."Oneend 'of'this lever is indicatediat" 31 and theoppOSl:f8,ellCl"'lt"32. Theend -32 of the lever is e'itende d to providea fian-geor' button 33 that "normally projects through and beyond aslot3% provided in the wall of the pen barrelfor thispurpose. These partsare so constructed that when the cap-'covers-the feedtube and pen point,or when afsocket covers these parts in the case of a desk fountain pen,the endof the capor socket engages the} flange 33 thereby depressing thesame and moving the lever arm '31 to the position shown in the dottedlines in Fig. 6, thisa'ctio'u, of course, permittingtheadjacent portionof the sack .to expand to thereby draw ink from the feed tube section ofthe penpoi'nt into the sack, it being understood that'in the case of adesk pen the socket into which the pen fits is the'equivalent of theusual cap.

Obviously also when the cap is removed tion of the spring'29 moves the"lever arm '31 or the pen removed from the socket the acinwardly againstthe-adjacent portion of the sack 21 and sufli'ciently 'far'only to causeenough ink to flou "through the feed tubesection'16 to the pen' point toprime the same. When in this positioirthe'flange33 or button projectsbeyond the surface of the barrel *soas to be depressible when the cap orsocket is again placed in position to'cover the feed tube section andpen point. It will furthermore be understood that the various types ofconstructionsas herein illustrated and described are now considered iaoto be-the best forms of the invention but that other and equivalentConstructions may be employed without departingfrom the nature s andspirit of the invention; e p o I claim as my invention I 1. In aself-filling'fountain pen, a barrel,

- a a feed tube section, a sack secured to the feed tube section andlying within thebarrel, a

, penpoint secured in the feed tube section, a

cap normally adapted tocover the feed tube section and pen point'and-tobe fitted on the opposite end of the-barrel, and abutton ex tendingthrough the barrel and adaptedto be operated by the said cap tocooperate with the said sackin the normal use of the pen to force onlysuflicientwriting fluidto the pen point to prime the same. 1

2. In a self-filling fountainpen, a bar rel, a feed tube section,aksa-ck connected to the feed tube section and lying within the barrel,a pen point, a cap adapted normally to cover the feed tube section andpen point,

and mechanical meansoperative upon the removal of the cap forcompressing the sack'to force a sufficient quantity of writing fluidtherefrom to the pen point to prime the same.

7 3. In a self-filling fountain pen, abarrel, a feed tube section, asack connected to the feed tube section and lying within the barrel,

a pen point, a cap adapted normally tocover the feed tubesection and penpoint, a yieldin gly mounted lever normallymaintained in an initialposition by the cap when in place to cover the feed tube sect-ion andpen point,

I extending through a slot provided therefor in the barrel tobe engagedby the cap when the same is in position to cover the feed tube sectionand pen point and to be operative when the cap is removed to compressthe sack to thereby force a suflicient quantity of writing fluidtherefrom to the said feed tube sec-' tion and pen point to prime thesame. a

In self-filling fountain pen, a barrel, a feed tube section, a sackconnected to the feed tube section and lying Within the barrel, a penpoint, a cover adapted to receive the feed tube section and pen point, ayieldingly lmounted lever normally maintained in an initial position bythe said cover when the feed tube section and pen point are within thesame and adapted uponthe removal of the feed tube'section and pen pointto com- 'g-IFOSS the sack to force a sufiicient quantity a slot rovidedtherefor in the barrel the of writing fluid therefrom tothe pen point ito: prime the same.

rel, a pen point, a cover adapted to receive attached tothe barrel, anda lever secured to the spring having an arm extending through leveradapted to be disengaged from the said" 6. Ina self-filling fountainpen, a barrel, a feedtube section, a sack connected tothe feed tubesection and lying within the barthe feed tube sect-ion andpen point, aspring covenwhen 'thefee'd tube section and pen point are removed,therefrom whereby'the lever compress the sack to therebyforce asufficient quantity of writing fluid from thesaclr to the feed tubesection and pen pointfor priming the same.

0 I 7. In a'self nlling fountain pen, a cap, a

barrel, a fed tube section, a pen point, a sack extending fromthe penpoint section and lyingwithin the barrehand a button having a partlying-between the said sack and the barreland another part extendingthrough the circumference of the barrel to beautomatically operative inthe use of the pen by placing the on the barrel thereby depressing thesack to forceonly sufficient writing fluid to the pen pointto prime thesame. o

8. In a self filling fountain pen, a cap, a barrel, a feed tube'section, a pen point, a' sack extending from the pen point section andlying within the barrel, anda button having a part lying'between thesaid sack and the barrel and another part extending through thecircumference of the barrel to be automatically operative in the use ofthe pen by placing the cap on the end of the barrel thereby depressingthe sack to force'only sufficient Writing fluid to the pen. point toprime the same, the movement of the said button being determined by itsprojecting surface beyondthe outer surface ofthe circumference of thebarrel.

9. In a self filling fountain pen, acap, a barrel, a feed tube section,a'pen point, a sack Within thebarrel for containing the writing fluid,and means automatically operative to withdraw the Writing fluid from thepen'point afterthe pen has been used.

10. In a self filling: fountain pen, a barrel, a feed tube section, asack connected to the feed tube section and lying within the barrel, apen point, a cap adapted to position on the end of the barrel duringthenormal operation of the pen, mechanical means operative upon placing thecap over the pen point and feed tube section to permitthe sack to expandthereby withdrawing the writing fluid from the pen point into the same,

Signed by me this 30th day of July, 1929,

' SAMUEL SUMMER.

